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| A New Flowering Chinese Cabbage F1 Hybrid —‘Yutian No.3 caixin’ |
| LI Guangguang，ZHANG Hua*，ZHENG Yansong，JIANG Ding，REN Hailong，XU Xunzhi |
| Guangzhou Institute of Agricultural Sciences，Guangzhou 510335，Guangdong，China |
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Abstract ‘Yutian No.3 caixin’is a new first-generation hybrid and late-maturing flowering Chinese cabbage，which is produced by using the male sterile line‘NKY018A1’of the Ogu CMS as the female parent and the inbred line‘B-1-1-3’as the male parent．From sowing to harvest，the spring crop takes 50-52 days and the autumn crop takes 52-54 days．It is an erect crop with a spiky leaf shape，dark green leaves，large flower heads，thick stems，and firm，symmetrical flesh．Its main stem is about 28.3 cm in high，and 2.7 cm in diameter．The weight of a single main stem is about 0.112 kg．The yield is about 19.5 t·hm-2 for spring crops，and 24.0 t·hm-2 for autumn crops．Its VC content is 318.0 mg·kg-1，and soluble sugar content is 19.1 g·kg-1．It is resistant to downy mildew and has strong cold resistance，which is suitable for planting in Guangdong．The suitable sowing time in the Pearl River Delta is from October to mid-December．
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Received: 29 March 2023
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